Results 241 to 250 of about 56,504 (268)
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Thermotolerant and thermostable laccases
Biotechnology Letters, 2009Laccases are phenol-oxidizing, usually four-copper containing metalloenzymes. For industrial and biotechnological purposes, laccases were among the first fungal oxidoreductases providing larger-scale applications such as removal of polyphenols in wine and beverages, conversion of toxic compounds and textile dyes in waste waters, and in bleaching and ...
Kristiina, Hildén +2 more
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Antioxidants determination with laccase
Talanta, 2007The spectrophotometric method of antioxidants determination using recombinant laccase Polyporus pinsitus (rPpL) and Myceliophthora thermophila (rMtL) was developed. The method includes simultaneous oxidation of the antioxidant and high reactive laccase substrate producing chromophoric radical cation.
Juozas, Kulys, Irina, Bratkovskaja
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Laccases: a never-ending story
Cellular and Molecular Life Sciences, 2009Laccases (benzenediol:oxygen oxidoreductases, EC 1.10.3.2) are blue multicopper oxidases that catalyze the oxidation of an array of aromatic substrates concomitantly with the reduction of molecular oxygen to water. In fungi, laccases carry out a variety of physiological roles during their life cycle. These enzymes are being increasingly evaluated for a
GIARDINA, PAOLA +5 more
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Laccase‐Catalyzed Dimerization of Hydroxystilbenes
Advanced Synthesis & Catalysis, 2007AbstractA series of hydroxystilbenes, analogues of the bioactive phytoalexin resveratrol, were synthesized and submitted to the catalytic action of a laccase from Trametes pubescens in a biphasic system made of ethyl acetate and acetate buffer. Oxidation took place at the 4′‐hydroxy (4‐hydroxy) position of the hydroxystilbenic moieties, followed by ...
PONZONI, Chiara +7 more
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2018
The search for cost-effective and environmental benign practices for the production of bioactive compounds has gained considerable attention since last decade, due to increasing demand of eco-friendly processes. Many industries have started adopting routes for the development of green chemistry by employing enzymatic approaches to overcome the ...
Helina Patel, Akshaya Gupte
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The search for cost-effective and environmental benign practices for the production of bioactive compounds has gained considerable attention since last decade, due to increasing demand of eco-friendly processes. Many industries have started adopting routes for the development of green chemistry by employing enzymatic approaches to overcome the ...
Helina Patel, Akshaya Gupte
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Laccases: structure, reactions, distribution
Micron, 2004Laccases (EC 1.10.3.2, p-diphenol: dioxygen oxidoreductases) are multi-copper proteins that use molecular oxygen to oxidize various aromatic and non-aromatic compounds by a radical-catalyzed reaction mechanism. The enzymes are involved in the pathogenicity, immunity and morphogenesis of organisms and in the metabolic turnover of complex organic ...
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Phytochemistry, 1978
Abstract The presence of a typical laccase is demonstrated in the cavities of the secretory ducts of a number of species of the Anacardiaceae, including Mangifera indica and Schinus molle . In addition mango fruit contains catechol oxidase. The presence of laccase may be of chemotaxonomic value.
Daniel M. Joel +2 more
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Abstract The presence of a typical laccase is demonstrated in the cavities of the secretory ducts of a number of species of the Anacardiaceae, including Mangifera indica and Schinus molle . In addition mango fruit contains catechol oxidase. The presence of laccase may be of chemotaxonomic value.
Daniel M. Joel +2 more
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Applied Biochemistry and Biotechnology, 1994
D. Schomburg, M. Salzmann, D. Stephan
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D. Schomburg, M. Salzmann, D. Stephan
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Three-dimensional structures of laccases
Cellular and Molecular Life Sciences, 2015Laccases are phenol oxidases that belong to the family of multi-copper oxidases and the superfamily of cupredoxins. A number of potential industrial applications for laccases have led to intensive structure-function studies and an increased amount of crystal structures has been solved.
Rouvinen Juha, Hakulinen Nina
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Laccases: blue enzymes for green chemistry
Trends in Biotechnology, 2006Laccases are oxidoreductases belonging to the multinuclear copper-containing oxidases; they catalyse the monoelectronic oxidation of substrates at the expense of molecular oxygen. Interest in these essentially "eco-friendly" enzymes--they work with air and produce water as the only by-product--has grown significantly in recent years: their uses span ...
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